linux-kernel - Re: linux-next: build failure after merge of the final tree (staging related)

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Message-ID: <20110610223423.GB15868@kroah.com>
Date:	Fri, 10 Jun 2011 15:34:23 -0700
From:	Greg KH <greg@...ah.com>
To:	Stephen Rothwell <sfr@...b.auug.org.au>
Cc:	brudley@...adcom.com, henryp@...adcom.com, rvossen@...adcom.com,
	linux-next@...r.kernel.org, linux-kernel@...r.kernel.org,
	Linus <torvalds@...ux-foundation.org>
Subject: Re: linux-next: build failure after merge of the final tree (staging
 related)

On Fri, Jun 10, 2011 at 04:09:38PM +1000, Stephen Rothwell wrote:
> Hi Greg,
> 
> On Fri, 10 Jun 2011 16:05:48 +1000 Stephen Rothwell <sfr@...b.auug.org.au> wrote:
> >
> > No, I still get these:
> > 
> > In file included from drivers/staging/comedi/drivers/addi_apci_035.c:7:0:
> > drivers/staging/comedi/drivers/addi-data/addi_common.c: In function 'i_ADDI_Attach':
> > drivers/staging/comedi/drivers/addi-data/addi_common.c:2765:7: error: implicit declaration of function 'virt_to_bus'
> > 
> > virt_to_bus is only defined for 32 bit powerpc (not 64 bit) (and maybe
> > not at all on some architectures e.g. sparc).
> > 
> > From Documentation/DMA-API-HOWTO.txt:
> > "All drivers should be using these interfaces with no exceptions.  It
> > is planned to completely remove virt_to_bus() and bus_to_virt() as
> > they are entirely deprecated.  Some ports already do not provide these
> > as it is impossible to correctly support them."
> 
> Drivers that use virt_to_bus should Kconfig depend on VIRT_TO_BUS.

Ah, I missed that, sorry.  I'll go make that change as well.

greg k-h
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